Improvement in packing for rotary engines



duurt (gauw @anni dtjijliw.

JOHN LOADEE, OE LONDON, ENGLAND, AssIGNOR 'ro HIMsELE, WILLIAM HENRY CHILD, AND AARON WHITE ooOK WILLIAMS, OE sAME PLAGE.

Letters `Patent No. 103,901, dated June 7, 1870.

IMPROVEMENT'IN PACKING FQR ROTARY ENGINES.

The Schedule referred to in these Letters Patent'. and making part ofthe same.

I, JOHN LOADER, of London, England, engineer, have invented certain Improvements in Rotary Engines, of which the following is a specification.

rllhis invention relates to the novel construction of cert-ain parts of a rotary engine, which may also be used for pumping and measuring liquids.

Description of the Drawing. Figure 1 isa front elevation of my improved en- V-gine, with the cylinder-cover removed.

d, which forms the piston, and which is so moved as to keep a portion of its periphery in contact with the inner periphery 'of the cylinder.

The piston does not revolve upon its axis, but,I as the said axis revolves, the piston gyrates in a 'peculiar manner therewith, and at the same time rocks to and fro on the joint c, which slides up and down on the stop or abutment f.

lhe saidnstop or abutment f is, by preference, rigidly fixed in the cylinder, as shown, and it passes through the two parts e162 of the cylindrical joint c, which works in a correspondingly formed recess within the disk or pistou d, -a suitable opening, g, being formed within the disk or piston to admit the end of the said stop or abutment as the ydisk or piston is` moved to and fro by the crank-pin or eccentric on which it is mounted.

The joint is provided with a packing-plate, f3, which is kept in contact with the surface of the abutment by a small spring, f4, and insures the joint being kept perfectly tight.

The disk or piston (l is provided with a number of packing-pieces, h, which are received into suitable undercut recesses formed across the periphery of the disk or piston, and are caused to bear with an elastic pressure upon the interior of the periphery of the cylinder by springs t'.

The sides of'the piston may be kept steam-tight by means of a diskvor plate placed between the piston and cylinder, but this additional plate will not usually be required,as it is sufficient to make the ,piston fit properly between the b`ack of the cylinder and .the

v cover j. I prefer to form a narrow' piece or ring, a",

around the face of the cylinder, to facilitate the fitting of the parts together.

The steam or other motive -uid is admitted at one side of the stop or abutment, while the exhaust-port vis on the other side of the said abutment. It'v it is desired to work the steam or other fluid expausively,

I cause the steam to enter at the side ofthe stop or v abutment, as shown, by a passage therein, which communicates with the steam-pipe outside the cylinder.

The inlet-port It must beformed in such a position that it will be closed at a suitable time before the outlet-port ciiis opened. v

If it is desired to make the engine reversible, I provide `the cylinder with anl inlet and outlet-port on each side of the abutment, and furnish them with valves or cocks, whereby each set of valves :may be opened or closed'as desired.

Two, or any other desired number of these cylinders and pistons may be connected with one shaft. When only one cylinder is used, I provide the shaft with al iiy-wheel, n.

It is obvious that,`by very slight modifications of this invention, the same may also be employed as a rotary pump or waterfmeter.

I am aware that man-y of the parts herein de-` scribed have been before known lin rotary engines and pumps, but they have failed of fullsuccess for want of other parts, or of a proper construction and arrangement. I do not claim any of the features, except as hereinafter enumerated.

I claim.-

l. The internal bearing-piece fa and spring f4,'ar

Vranged as represented, relatively to the cheeks-e162,

abutment f, piston d, and its inclosing casing and passages, for the purposes herein set forth.

2. The combination of the packing-pieces h, and

Ytheir operating means, piston d, gyrating as described, cheeks e1 e2, containedH piece f3, and spring f", all

arranged for joint operation relatively to each other and to the abutment f and casing c, as herein specified.

JOHN LOADER. [1.. s] Witnesses M. WENN, 24 Royal Exchange, H. I.GEDGE. 

